package com.yeren.servlet.tarena.web;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class Context02Servlet extends HttpServlet{
	protected void service(HttpServletRequest req,HttpServletResponse resp)throws ServletException,IOException{
		resp.setContentType("text/html;charset=utf-8");
		PrintWriter out=resp.getWriter();
		//获取全局的上下文对象
		ServletContext context=getServletContext();
		Object count=context.getAttribute("count");
		if(count==null){
			context.setAttribute("count", context.getInitParameter("count"));
			//context.setAttribute("count",1);
			
		}else{
			context.setAttribute("count", Integer.parseInt(count.toString())+1);
		}
		out.print("总浏览量为："+context.getAttribute("count"));
		
	}
}
